The Art of projection and complete magic lantern ... - Yesterday Image

169single light box is very misleading : with a good jet one box may bemade to give as much light as is obtained from two boxes in some of thetheatres ; it is sometimes thought that one light box will give the sameillumination as seen in some of our large theatres. In Drury Lanetheatre, in some of the spectacular scenes, there are forty boxes goingat one time. A tableau cannot be lighted too much, and care must betaken when the lights are at the side to illuminate the front of thefigures as much as possible, otherwise there will be heavy shadows. Itis important that all other stage lights be lowered, if the full effect of thelimelight is to be obtained.In tinting or colouring a tableau by the aid of coloured glasses orgelatine, light tints only should be used, as a great deal of light isobstructed by this means. When more than one colour is thrown on asingle figure, care should be taken that the colours do not obliterateeach other and produce white, as is often the case, i.e., a red and blue ofthe correct tints when superimposed produce ivhite light, according to awell known law in optics.GHOSTILLUSION.Fig. 70-